The BBC have released the synopsis for Doctor Who Series 6, Episode 9, Night Terrors - read it below. The Mark Gatiss story airs Sep 3 in the UK, US and Canada whilst it airs Sep 10 in Australia.

The Doctor receives a distress call from the scariest place in the Universe: a child's bedroom, as the time-travelling drama continues.

Every night George lies awake, terrorised by every fear you can possibly imagine – fears that live in his bedroom cupboard. His parents are getting desperate – George needs a doctor.

Fortunately for George, his desperate pleas for help break through the barriers of all time and space and the Doctor makes a house call. But allaying his fears won't be easy; because George's monsters are real.

The Doctor is played by Matt Smith, George by Jamie Oram, Amy by Karen Gillan and Rory by Arthur Darvill.